What is the test for establishing municipal control of a local authority?

1 "In determining whether such control exists, a variety of considerations may be relevant, including the presence or absence of (1) substantial municipal control over agency operations, revenues or expenditures, (2) municipal ownership or control over agency property or facilities, (3) coterminous physical boundaries, (4) common or overlapping governing boards, (5) municipal involvement in the creation or formation of the agency, and (6) agency performance of functions customarily or historically performed by municipalities and financed through levies of property taxes." (Rider v. County of San Diego, supra, 1 Cal.4th at pp. 11-12, 2 Cal.Rptr.2d 490, 820 P.2d 1000.)